Ukrainian Journal Health of Woman. 2026. 1(182): 37-43. doi: 10.15574/HW.2026.1(182).3743

Romanenko T. G., Staselovych L. Y., Zhaloba H. M.
Shupyk National Healthcare University of Ukraine, Kyiv

For citation: Romanenko TG, Staselovych LY, Zhaloba HM. (2026). Ultrasound predictors of gestational complications in pregnant women with chorionic detachment. Ukrainian Journal Health of Woman. 1(182): 37-43. doi: 10.15574/HW.2026.1(182).3743
Article received: Dec 14, 2025. Accepted for publication: Jan 28, 2026.

The high risk of pregnancy complications and adverse outcomes in the presence of retrochorial hematoma (RCH) necessitates the search for effective early ultrasound predictors, which remains a relevant task in modern obstetrics.
Aim – to determine the ultrasound features of the embryo, chorion, extraembryonic structures, and RCH in patients with chorionic detachment which are predictors of early pregnancy complications.
Materials and methods. А сlinical observation of 164 pregnant women (main group, MG) with RCH and 48 pregnant women (control without RCH in the first trimester (control group – CG) was conducted. In all pregnant women (n=212), an analysis of ultrasound characteristics of the chorion, retrochorial hematomas, embryo, and extraembryonic structures was performed during the first trimester.
Results. Logistic regression and ROC analysis showed a significant relationship between the lag of сoccygeal-parietal size (CPS) from the gestational age by more than 7 days and non-developing pregnancy up to 12 weeks; between the early term of RCH formation (up to 8 weeks) and non-developing pregnancy up to 12 weeks, hematoma volume more than 1.5 cm³ and non-developing pregnancy. And the chance of non-developing pregnancy in patients with RCH is 2.66 times higher with the development of RCH up to 8 weeks, 2.5 times higher with the detection of a lag of CPS from the gestational age by more than 7 days; 2.92 times higher with the detection of a hematoma with a volume of more than 1.5 cm³.
Conclusions. Retrochorial hematoma increases the risk of non-developing pregnancy by 2.6 times, while embryonic and extraembryonic predictors of early losses in pregnant women with retrochorial hematomas are: coccygeal-parietal size lag of more than 7 days from the gestational age, retrochorial hematoma volume of more than 1.5 cm³.
The study was performed in accordance with the principles of the Declaration of Helsinki. The study protocol was approved by the Local Ethics Committee of the institution mentioned in the work. Informed consent of women was obtained for the study.
The authors declare no conflict of interest.
Keywords: ultrasound examination, first trimester of pregnancy, localization of the chorion, chorionic detachment, retrochorial hematoma, embryo, extraembryonic structures, predictors of pregnancy complications, non-developing pregnancy.

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